docs/dyn/ml_v1.projects.models.versions.html

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<h1><a href="ml_v1.html">Cloud Machine Learning Engine</a> . <a href="ml_v1.projects.html">projects</a> . <a href="ml_v1.projects.models.html">models</a> . <a href="ml_v1.projects.models.versions.html">versions</a></h1>
<h2>Instance Methods</h2>
<p class="toc_element">
  <code><a href="#create">create(parent, body, x__xgafv=None)</a></code></p>
<p class="firstline">Creates a new version of a model from a trained TensorFlow model.</p>
<p class="toc_element">
  <code><a href="#delete">delete(name, x__xgafv=None)</a></code></p>
<p class="firstline">Deletes a model version.</p>
<p class="toc_element">
  <code><a href="#get">get(name, x__xgafv=None)</a></code></p>
<p class="firstline">Gets information about a model version.</p>
<p class="toc_element">
  <code><a href="#list">list(parent, pageToken=None, x__xgafv=None, pageSize=None, filter=None)</a></code></p>
<p class="firstline">Gets basic information about all the versions of a model.</p>
<p class="toc_element">
  <code><a href="#list_next">list_next(previous_request, previous_response)</a></code></p>
<p class="firstline">Retrieves the next page of results.</p>
<p class="toc_element">
  <code><a href="#patch">patch(name, body, updateMask=None, x__xgafv=None)</a></code></p>
<p class="firstline">Updates the specified Version resource.</p>
<p class="toc_element">
  <code><a href="#setDefault">setDefault(name, body=None, x__xgafv=None)</a></code></p>
<p class="firstline">Designates a version to be the default for the model.</p>
<h3>Method Details</h3>
<div class="method">
    <code class="details" id="create">create(parent, body, x__xgafv=None)</code>
  <pre>Creates a new version of a model from a trained TensorFlow model.

If the version created in the cloud by this call is the first deployed
version of the specified model, it will be made the default version of the
model. When you add a version to a model that already has one or more
versions, the default version does not automatically change. If you want a
new version to be the default, you must call
[projects.models.versions.setDefault](/ml-engine/reference/rest/v1/projects.models.versions/setDefault).

Args:
  parent: string, Required. The name of the model. (required)
  body: object, The request body. (required)
    The object takes the form of:

{ # Represents a version of the model.
    # 
    # Each version is a trained model deployed in the cloud, ready to handle
    # prediction requests. A model can have multiple versions. You can get
    # information about all of the versions of a given model by calling
    # [projects.models.versions.list](/ml-engine/reference/rest/v1/projects.models.versions/list).
  "errorMessage": "A String", # Output only. The details of a failure or a cancellation.
  "labels": { # Optional. One or more labels that you can add, to organize your model
      # versions. Each label is a key-value pair, where both the key and the value
      # are arbitrary strings that you supply.
      # For more information, see the documentation on
      # <a href="/ml-engine/docs/tensorflow/resource-labels">using labels</a>.
    "a_key": "A String",
  },
  "machineType": "A String", # Optional. The type of machine on which to serve the model. Currently only
      # applies to online prediction service.
      # <dl>
      #   <dt>mls1-c1-m2</dt>
      #   <dd>
      #   The <b>default</b> machine type, with 1 core and 2 GB RAM. The deprecated
      #   name for this machine type is "mls1-highmem-1".
      #   </dd>
      #   <dt>mls1-c4-m2</dt>
      #   <dd>
      #   In <b>Beta</b>. This machine type has 4 cores and 2 GB RAM. The
      #   deprecated name for this machine type is "mls1-highcpu-4".
      #   </dd>
      # </dl>
  "description": "A String", # Optional. The description specified for the version when it was created.
  "runtimeVersion": "A String", # Optional. The AI Platform runtime version to use for this deployment.
      # If not set, AI Platform uses the default stable version, 1.0. For more
      # information, see the
      # [runtime version list](/ml-engine/docs/runtime-version-list) and
      # [how to manage runtime versions](/ml-engine/docs/versioning).
  "manualScaling": { # Options for manually scaling a model. # Manually select the number of nodes to use for serving the
      # model. You should generally use `auto_scaling` with an appropriate
      # `min_nodes` instead, but this option is available if you want more
      # predictable billing. Beware that latency and error rates will increase
      # if the traffic exceeds that capability of the system to serve it based
      # on the selected number of nodes.
    "nodes": 42, # The number of nodes to allocate for this model. These nodes are always up,
        # starting from the time the model is deployed, so the cost of operating
        # this model will be proportional to `nodes` * number of hours since
        # last billing cycle plus the cost for each prediction performed.
  },
  "predictionClass": "A String", # Optional. The fully qualified name
      # (<var>module_name</var>.<var>class_name</var>) of a class that implements
      # the Predictor interface described in this reference field. The module
      # containing this class should be included in a package provided to the
      # [`packageUris` field](#Version.FIELDS.package_uris).
      # 
      # Specify this field if and only if you are deploying a [custom prediction
      # routine (beta)](/ml-engine/docs/tensorflow/custom-prediction-routines).
      # If you specify this field, you must set
      # [`runtimeVersion`](#Version.FIELDS.runtime_version) to 1.4 or greater.
      # 
      # The following code sample provides the Predictor interface:
      # 
      # ```py
      # class Predictor(object):
      # """Interface for constructing custom predictors."""
      # 
      # def predict(self, instances, **kwargs):
      #     """Performs custom prediction.
      # 
      #     Instances are the decoded values from the request. They have already
      #     been deserialized from JSON.
      # 
      #     Args:
      #         instances: A list of prediction input instances.
      #         **kwargs: A dictionary of keyword args provided as additional
      #             fields on the predict request body.
      # 
      #     Returns:
      #         A list of outputs containing the prediction results. This list must
      #         be JSON serializable.
      #     """
      #     raise NotImplementedError()
      # 
      # @classmethod
      # def from_path(cls, model_dir):
      #     """Creates an instance of Predictor using the given path.
      # 
      #     Loading of the predictor should be done in this method.
      # 
      #     Args:
      #         model_dir: The local directory that contains the exported model
      #             file along with any additional files uploaded when creating the
      #             version resource.
      # 
      #     Returns:
      #         An instance implementing this Predictor class.
      #     """
      #     raise NotImplementedError()
      # ```
      # 
      # Learn more about [the Predictor interface and custom prediction
      # routines](/ml-engine/docs/tensorflow/custom-prediction-routines).
  "autoScaling": { # Options for automatically scaling a model. # Automatically scale the number of nodes used to serve the model in
      # response to increases and decreases in traffic. Care should be
      # taken to ramp up traffic according to the model's ability to scale
      # or you will start seeing increases in latency and 429 response codes.
    "minNodes": 42, # Optional. The minimum number of nodes to allocate for this model. These
        # nodes are always up, starting from the time the model is deployed.
        # Therefore, the cost of operating this model will be at least
        # `rate` * `min_nodes` * number of hours since last billing cycle,
        # where `rate` is the cost per node-hour as documented in the
        # [pricing guide](/ml-engine/docs/pricing),
        # even if no predictions are performed. There is additional cost for each
        # prediction performed.
        #
        # Unlike manual scaling, if the load gets too heavy for the nodes
        # that are up, the service will automatically add nodes to handle the
        # increased load as well as scale back as traffic drops, always maintaining
        # at least `min_nodes`. You will be charged for the time in which additional
        # nodes are used.
        #
        # If not specified, `min_nodes` defaults to 0, in which case, when traffic
        # to a model stops (and after a cool-down period), nodes will be shut down
        # and no charges will be incurred until traffic to the model resumes.
        #
        # You can set `min_nodes` when creating the model version, and you can also
        # update `min_nodes` for an existing version:
        # <pre>
        # update_body.json:
        # {
        #   'autoScaling': {
        #     'minNodes': 5
        #   }
        # }
        # </pre>
        # HTTP request:
        # <pre>
        # PATCH
        # https://ml.googleapis.com/v1/{name=projects/*/models/*/versions/*}?update_mask=autoScaling.minNodes
        # -d @./update_body.json
        # </pre>
  },
  "serviceAccount": "A String", # Optional. Specifies the service account for resource access control.
  "state": "A String", # Output only. The state of a version.
  "pythonVersion": "A String", # Optional. The version of Python used in prediction. If not set, the default
      # version is '2.7'. Python '3.5' is available when `runtime_version` is set
      # to '1.4' and above. Python '2.7' works with all supported runtime versions.
  "framework": "A String", # Optional. The machine learning framework AI Platform uses to train
      # this version of the model. Valid values are `TENSORFLOW`, `SCIKIT_LEARN`,
      # `XGBOOST`. If you do not specify a framework, AI Platform
      # will analyze files in the deployment_uri to determine a framework. If you
      # choose `SCIKIT_LEARN` or `XGBOOST`, you must also set the runtime version
      # of the model to 1.4 or greater.
      # 
      # Do **not** specify a framework if you're deploying a [custom
      # prediction routine](/ml-engine/docs/tensorflow/custom-prediction-routines).
  "packageUris": [ # Optional. Cloud Storage paths (`gs://…`) of packages for [custom
      # prediction routines](/ml-engine/docs/tensorflow/custom-prediction-routines)
      # or [scikit-learn pipelines with custom
      # code](/ml-engine/docs/scikit/exporting-for-prediction#custom-pipeline-code).
      # 
      # For a custom prediction routine, one of these packages must contain your
      # Predictor class (see
      # [`predictionClass`](#Version.FIELDS.prediction_class)). Additionally,
      # include any dependencies used by your Predictor or scikit-learn pipeline
      # uses that are not already included in your selected [runtime
      # version](/ml-engine/docs/tensorflow/runtime-version-list).
      # 
      # If you specify this field, you must also set
      # [`runtimeVersion`](#Version.FIELDS.runtime_version) to 1.4 or greater.
    "A String",
  ],
  "etag": "A String", # `etag` is used for optimistic concurrency control as a way to help
      # prevent simultaneous updates of a model from overwriting each other.
      # It is strongly suggested that systems make use of the `etag` in the
      # read-modify-write cycle to perform model updates in order to avoid race
      # conditions: An `etag` is returned in the response to `GetVersion`, and
      # systems are expected to put that etag in the request to `UpdateVersion` to
      # ensure that their change will be applied to the model as intended.
  "lastUseTime": "A String", # Output only. The time the version was last used for prediction.
  "deploymentUri": "A String", # Required. The Cloud Storage location of the trained model used to
      # create the version. See the
      # [guide to model
      # deployment](/ml-engine/docs/tensorflow/deploying-models) for more
      # information.
      # 
      # When passing Version to
      # [projects.models.versions.create](/ml-engine/reference/rest/v1/projects.models.versions/create)
      # the model service uses the specified location as the source of the model.
      # Once deployed, the model version is hosted by the prediction service, so
      # this location is useful only as a historical record.
      # The total number of model files can't exceed 1000.
  "createTime": "A String", # Output only. The time the version was created.
  "isDefault": True or False, # Output only. If true, this version will be used to handle prediction
      # requests that do not specify a version.
      # 
      # You can change the default version by calling
      # [projects.methods.versions.setDefault](/ml-engine/reference/rest/v1/projects.models.versions/setDefault).
  "name": "A String", # Required.The name specified for the version when it was created.
      # 
      # The version name must be unique within the model it is created in.
}

  x__xgafv: string, V1 error format.
    Allowed values
      1 - v1 error format
      2 - v2 error format

Returns:
  An object of the form:

    { # This resource represents a long-running operation that is the result of a
      # network API call.
    "metadata": { # Service-specific metadata associated with the operation.  It typically
        # contains progress information and common metadata such as create time.
        # Some services might not provide such metadata.  Any method that returns a
        # long-running operation should document the metadata type, if any.
      "a_key": "", # Properties of the object. Contains field @type with type URL.
    },
    "error": { # The `Status` type defines a logical error model that is suitable for # The error result of the operation in case of failure or cancellation.
        # different programming environments, including REST APIs and RPC APIs. It is
        # used by [gRPC](https://github.com/grpc). Each `Status` message contains
        # three pieces of data: error code, error message, and error details.
        #
        # You can find out more about this error model and how to work with it in the
        # [API Design Guide](https://cloud.google.com/apis/design/errors).
      "message": "A String", # A developer-facing error message, which should be in English. Any
          # user-facing error message should be localized and sent in the
          # google.rpc.Status.details field, or localized by the client.
      "code": 42, # The status code, which should be an enum value of google.rpc.Code.
      "details": [ # A list of messages that carry the error details.  There is a common set of
          # message types for APIs to use.
        {
          "a_key": "", # Properties of the object. Contains field @type with type URL.
        },
      ],
    },
    "done": True or False, # If the value is `false`, it means the operation is still in progress.
        # If `true`, the operation is completed, and either `error` or `response` is
        # available.
    "response": { # The normal response of the operation in case of success.  If the original
        # method returns no data on success, such as `Delete`, the response is
        # `google.protobuf.Empty`.  If the original method is standard
        # `Get`/`Create`/`Update`, the response should be the resource.  For other
        # methods, the response should have the type `XxxResponse`, where `Xxx`
        # is the original method name.  For example, if the original method name
        # is `TakeSnapshot()`, the inferred response type is
        # `TakeSnapshotResponse`.
      "a_key": "", # Properties of the object. Contains field @type with type URL.
    },
    "name": "A String", # The server-assigned name, which is only unique within the same service that
        # originally returns it. If you use the default HTTP mapping, the
        # `name` should be a resource name ending with `operations/{unique_id}`.
  }</pre>
</div>

<div class="method">
    <code class="details" id="delete">delete(name, x__xgafv=None)</code>
  <pre>Deletes a model version.

Each model can have multiple versions deployed and in use at any given
time. Use this method to remove a single version.

Note: You cannot delete the version that is set as the default version
of the model unless it is the only remaining version.

Args:
  name: string, Required. The name of the version. You can get the names of all the
versions of a model by calling
[projects.models.versions.list](/ml-engine/reference/rest/v1/projects.models.versions/list). (required)
  x__xgafv: string, V1 error format.
    Allowed values
      1 - v1 error format
      2 - v2 error format

Returns:
  An object of the form:

    { # This resource represents a long-running operation that is the result of a
      # network API call.
    "metadata": { # Service-specific metadata associated with the operation.  It typically
        # contains progress information and common metadata such as create time.
        # Some services might not provide such metadata.  Any method that returns a
        # long-running operation should document the metadata type, if any.
      "a_key": "", # Properties of the object. Contains field @type with type URL.
    },
    "error": { # The `Status` type defines a logical error model that is suitable for # The error result of the operation in case of failure or cancellation.
        # different programming environments, including REST APIs and RPC APIs. It is
        # used by [gRPC](https://github.com/grpc). Each `Status` message contains
        # three pieces of data: error code, error message, and error details.
        #
        # You can find out more about this error model and how to work with it in the
        # [API Design Guide](https://cloud.google.com/apis/design/errors).
      "message": "A String", # A developer-facing error message, which should be in English. Any
          # user-facing error message should be localized and sent in the
          # google.rpc.Status.details field, or localized by the client.
      "code": 42, # The status code, which should be an enum value of google.rpc.Code.
      "details": [ # A list of messages that carry the error details.  There is a common set of
          # message types for APIs to use.
        {
          "a_key": "", # Properties of the object. Contains field @type with type URL.
        },
      ],
    },
    "done": True or False, # If the value is `false`, it means the operation is still in progress.
        # If `true`, the operation is completed, and either `error` or `response` is
        # available.
    "response": { # The normal response of the operation in case of success.  If the original
        # method returns no data on success, such as `Delete`, the response is
        # `google.protobuf.Empty`.  If the original method is standard
        # `Get`/`Create`/`Update`, the response should be the resource.  For other
        # methods, the response should have the type `XxxResponse`, where `Xxx`
        # is the original method name.  For example, if the original method name
        # is `TakeSnapshot()`, the inferred response type is
        # `TakeSnapshotResponse`.
      "a_key": "", # Properties of the object. Contains field @type with type URL.
    },
    "name": "A String", # The server-assigned name, which is only unique within the same service that
        # originally returns it. If you use the default HTTP mapping, the
        # `name` should be a resource name ending with `operations/{unique_id}`.
  }</pre>
</div>

<div class="method">
    <code class="details" id="get">get(name, x__xgafv=None)</code>
  <pre>Gets information about a model version.

Models can have multiple versions. You can call
[projects.models.versions.list](/ml-engine/reference/rest/v1/projects.models.versions/list)
to get the same information that this method returns for all of the
versions of a model.

Args:
  name: string, Required. The name of the version. (required)
  x__xgafv: string, V1 error format.
    Allowed values
      1 - v1 error format
      2 - v2 error format

Returns:
  An object of the form:

    { # Represents a version of the model.
      #
      # Each version is a trained model deployed in the cloud, ready to handle
      # prediction requests. A model can have multiple versions. You can get
      # information about all of the versions of a given model by calling
      # [projects.models.versions.list](/ml-engine/reference/rest/v1/projects.models.versions/list).
    "errorMessage": "A String", # Output only. The details of a failure or a cancellation.
    "labels": { # Optional. One or more labels that you can add, to organize your model
        # versions. Each label is a key-value pair, where both the key and the value
        # are arbitrary strings that you supply.
        # For more information, see the documentation on
        # <a href="/ml-engine/docs/tensorflow/resource-labels">using labels</a>.
      "a_key": "A String",
    },
    "machineType": "A String", # Optional. The type of machine on which to serve the model. Currently only
        # applies to online prediction service.
        # <dl>
        #   <dt>mls1-c1-m2</dt>
        #   <dd>
        #   The <b>default</b> machine type, with 1 core and 2 GB RAM. The deprecated
        #   name for this machine type is "mls1-highmem-1".
        #   </dd>
        #   <dt>mls1-c4-m2</dt>
        #   <dd>
        #   In <b>Beta</b>. This machine type has 4 cores and 2 GB RAM. The
        #   deprecated name for this machine type is "mls1-highcpu-4".
        #   </dd>
        # </dl>
    "description": "A String", # Optional. The description specified for the version when it was created.
    "runtimeVersion": "A String", # Optional. The AI Platform runtime version to use for this deployment.
        # If not set, AI Platform uses the default stable version, 1.0. For more
        # information, see the
        # [runtime version list](/ml-engine/docs/runtime-version-list) and
        # [how to manage runtime versions](/ml-engine/docs/versioning).
    "manualScaling": { # Options for manually scaling a model. # Manually select the number of nodes to use for serving the
        # model. You should generally use `auto_scaling` with an appropriate
        # `min_nodes` instead, but this option is available if you want more
        # predictable billing. Beware that latency and error rates will increase
        # if the traffic exceeds that capability of the system to serve it based
        # on the selected number of nodes.
      "nodes": 42, # The number of nodes to allocate for this model. These nodes are always up,
          # starting from the time the model is deployed, so the cost of operating
          # this model will be proportional to `nodes` * number of hours since
          # last billing cycle plus the cost for each prediction performed.
    },
    "predictionClass": "A String", # Optional. The fully qualified name
        # (<var>module_name</var>.<var>class_name</var>) of a class that implements
        # the Predictor interface described in this reference field. The module
        # containing this class should be included in a package provided to the
        # [`packageUris` field](#Version.FIELDS.package_uris).
        #
        # Specify this field if and only if you are deploying a [custom prediction
        # routine (beta)](/ml-engine/docs/tensorflow/custom-prediction-routines).
        # If you specify this field, you must set
        # [`runtimeVersion`](#Version.FIELDS.runtime_version) to 1.4 or greater.
        #
        # The following code sample provides the Predictor interface:
        #
        # ```py
        # class Predictor(object):
        # """Interface for constructing custom predictors."""
        #
        # def predict(self, instances, **kwargs):
        #     """Performs custom prediction.
        #
        #     Instances are the decoded values from the request. They have already
        #     been deserialized from JSON.
        #
        #     Args:
        #         instances: A list of prediction input instances.
        #         **kwargs: A dictionary of keyword args provided as additional
        #             fields on the predict request body.
        #
        #     Returns:
        #         A list of outputs containing the prediction results. This list must
        #         be JSON serializable.
        #     """
        #     raise NotImplementedError()
        #
        # @classmethod
        # def from_path(cls, model_dir):
        #     """Creates an instance of Predictor using the given path.
        #
        #     Loading of the predictor should be done in this method.
        #
        #     Args:
        #         model_dir: The local directory that contains the exported model
        #             file along with any additional files uploaded when creating the
        #             version resource.
        #
        #     Returns:
        #         An instance implementing this Predictor class.
        #     """
        #     raise NotImplementedError()
        # ```
        #
        # Learn more about [the Predictor interface and custom prediction
        # routines](/ml-engine/docs/tensorflow/custom-prediction-routines).
    "autoScaling": { # Options for automatically scaling a model. # Automatically scale the number of nodes used to serve the model in
        # response to increases and decreases in traffic. Care should be
        # taken to ramp up traffic according to the model's ability to scale
        # or you will start seeing increases in latency and 429 response codes.
      "minNodes": 42, # Optional. The minimum number of nodes to allocate for this model. These
          # nodes are always up, starting from the time the model is deployed.
          # Therefore, the cost of operating this model will be at least
          # `rate` * `min_nodes` * number of hours since last billing cycle,
          # where `rate` is the cost per node-hour as documented in the
          # [pricing guide](/ml-engine/docs/pricing),
          # even if no predictions are performed. There is additional cost for each
          # prediction performed.
          #
          # Unlike manual scaling, if the load gets too heavy for the nodes
          # that are up, the service will automatically add nodes to handle the
          # increased load as well as scale back as traffic drops, always maintaining
          # at least `min_nodes`. You will be charged for the time in which additional
          # nodes are used.
          #
          # If not specified, `min_nodes` defaults to 0, in which case, when traffic
          # to a model stops (and after a cool-down period), nodes will be shut down
          # and no charges will be incurred until traffic to the model resumes.
          #
          # You can set `min_nodes` when creating the model version, and you can also
          # update `min_nodes` for an existing version:
          # <pre>
          # update_body.json:
          # {
          #   'autoScaling': {
          #     'minNodes': 5
          #   }
          # }
          # </pre>
          # HTTP request:
          # <pre>
          # PATCH
          # https://ml.googleapis.com/v1/{name=projects/*/models/*/versions/*}?update_mask=autoScaling.minNodes
          # -d @./update_body.json
          # </pre>
    },
    "serviceAccount": "A String", # Optional. Specifies the service account for resource access control.
    "state": "A String", # Output only. The state of a version.
    "pythonVersion": "A String", # Optional. The version of Python used in prediction. If not set, the default
        # version is '2.7'. Python '3.5' is available when `runtime_version` is set
        # to '1.4' and above. Python '2.7' works with all supported runtime versions.
    "framework": "A String", # Optional. The machine learning framework AI Platform uses to train
        # this version of the model. Valid values are `TENSORFLOW`, `SCIKIT_LEARN`,
        # `XGBOOST`. If you do not specify a framework, AI Platform
        # will analyze files in the deployment_uri to determine a framework. If you
        # choose `SCIKIT_LEARN` or `XGBOOST`, you must also set the runtime version
        # of the model to 1.4 or greater.
        #
        # Do **not** specify a framework if you're deploying a [custom
        # prediction routine](/ml-engine/docs/tensorflow/custom-prediction-routines).
    "packageUris": [ # Optional. Cloud Storage paths (`gs://…`) of packages for [custom
        # prediction routines](/ml-engine/docs/tensorflow/custom-prediction-routines)
        # or [scikit-learn pipelines with custom
        # code](/ml-engine/docs/scikit/exporting-for-prediction#custom-pipeline-code).
        #
        # For a custom prediction routine, one of these packages must contain your
        # Predictor class (see
        # [`predictionClass`](#Version.FIELDS.prediction_class)). Additionally,
        # include any dependencies used by your Predictor or scikit-learn pipeline
        # uses that are not already included in your selected [runtime
        # version](/ml-engine/docs/tensorflow/runtime-version-list).
        #
        # If you specify this field, you must also set
        # [`runtimeVersion`](#Version.FIELDS.runtime_version) to 1.4 or greater.
      "A String",
    ],
    "etag": "A String", # `etag` is used for optimistic concurrency control as a way to help
        # prevent simultaneous updates of a model from overwriting each other.
        # It is strongly suggested that systems make use of the `etag` in the
        # read-modify-write cycle to perform model updates in order to avoid race
        # conditions: An `etag` is returned in the response to `GetVersion`, and
        # systems are expected to put that etag in the request to `UpdateVersion` to
        # ensure that their change will be applied to the model as intended.
    "lastUseTime": "A String", # Output only. The time the version was last used for prediction.
    "deploymentUri": "A String", # Required. The Cloud Storage location of the trained model used to
        # create the version. See the
        # [guide to model
        # deployment](/ml-engine/docs/tensorflow/deploying-models) for more
        # information.
        #
        # When passing Version to
        # [projects.models.versions.create](/ml-engine/reference/rest/v1/projects.models.versions/create)
        # the model service uses the specified location as the source of the model.
        # Once deployed, the model version is hosted by the prediction service, so
        # this location is useful only as a historical record.
        # The total number of model files can't exceed 1000.
    "createTime": "A String", # Output only. The time the version was created.
    "isDefault": True or False, # Output only. If true, this version will be used to handle prediction
        # requests that do not specify a version.
        #
        # You can change the default version by calling
        # [projects.methods.versions.setDefault](/ml-engine/reference/rest/v1/projects.models.versions/setDefault).
    "name": "A String", # Required.The name specified for the version when it was created.
        #
        # The version name must be unique within the model it is created in.
  }</pre>
</div>

<div class="method">
    <code class="details" id="list">list(parent, pageToken=None, x__xgafv=None, pageSize=None, filter=None)</code>
  <pre>Gets basic information about all the versions of a model.

If you expect that a model has many versions, or if you need to handle
only a limited number of results at a time, you can request that the list
be retrieved in batches (called pages).

If there are no versions that match the request parameters, the list
request returns an empty response body: {}.

Args:
  parent: string, Required. The name of the model for which to list the version. (required)
  pageToken: string, Optional. A page token to request the next page of results.

You get the token from the `next_page_token` field of the response from
the previous call.
  x__xgafv: string, V1 error format.
    Allowed values
      1 - v1 error format
      2 - v2 error format
  pageSize: integer, Optional. The number of versions to retrieve per "page" of results. If
there are more remaining results than this number, the response message
will contain a valid value in the `next_page_token` field.

The default value is 20, and the maximum page size is 100.
  filter: string, Optional. Specifies the subset of versions to retrieve.

Returns:
  An object of the form:

    { # Response message for the ListVersions method.
    "nextPageToken": "A String", # Optional. Pass this token as the `page_token` field of the request for a
        # subsequent call.
    "versions": [ # The list of versions.
      { # Represents a version of the model.
          #
          # Each version is a trained model deployed in the cloud, ready to handle
          # prediction requests. A model can have multiple versions. You can get
          # information about all of the versions of a given model by calling
          # [projects.models.versions.list](/ml-engine/reference/rest/v1/projects.models.versions/list).
        "errorMessage": "A String", # Output only. The details of a failure or a cancellation.
        "labels": { # Optional. One or more labels that you can add, to organize your model
            # versions. Each label is a key-value pair, where both the key and the value
            # are arbitrary strings that you supply.
            # For more information, see the documentation on
            # <a href="/ml-engine/docs/tensorflow/resource-labels">using labels</a>.
          "a_key": "A String",
        },
        "machineType": "A String", # Optional. The type of machine on which to serve the model. Currently only
            # applies to online prediction service.
            # <dl>
            #   <dt>mls1-c1-m2</dt>
            #   <dd>
            #   The <b>default</b> machine type, with 1 core and 2 GB RAM. The deprecated
            #   name for this machine type is "mls1-highmem-1".
            #   </dd>
            #   <dt>mls1-c4-m2</dt>
            #   <dd>
            #   In <b>Beta</b>. This machine type has 4 cores and 2 GB RAM. The
            #   deprecated name for this machine type is "mls1-highcpu-4".
            #   </dd>
            # </dl>
        "description": "A String", # Optional. The description specified for the version when it was created.
        "runtimeVersion": "A String", # Optional. The AI Platform runtime version to use for this deployment.
            # If not set, AI Platform uses the default stable version, 1.0. For more
            # information, see the
            # [runtime version list](/ml-engine/docs/runtime-version-list) and
            # [how to manage runtime versions](/ml-engine/docs/versioning).
        "manualScaling": { # Options for manually scaling a model. # Manually select the number of nodes to use for serving the
            # model. You should generally use `auto_scaling` with an appropriate
            # `min_nodes` instead, but this option is available if you want more
            # predictable billing. Beware that latency and error rates will increase
            # if the traffic exceeds that capability of the system to serve it based
            # on the selected number of nodes.
          "nodes": 42, # The number of nodes to allocate for this model. These nodes are always up,
              # starting from the time the model is deployed, so the cost of operating
              # this model will be proportional to `nodes` * number of hours since
              # last billing cycle plus the cost for each prediction performed.
        },
        "predictionClass": "A String", # Optional. The fully qualified name
            # (<var>module_name</var>.<var>class_name</var>) of a class that implements
            # the Predictor interface described in this reference field. The module
            # containing this class should be included in a package provided to the
            # [`packageUris` field](#Version.FIELDS.package_uris).
            #
            # Specify this field if and only if you are deploying a [custom prediction
            # routine (beta)](/ml-engine/docs/tensorflow/custom-prediction-routines).
            # If you specify this field, you must set
            # [`runtimeVersion`](#Version.FIELDS.runtime_version) to 1.4 or greater.
            #
            # The following code sample provides the Predictor interface:
            #
            # ```py
            # class Predictor(object):
            # """Interface for constructing custom predictors."""
            #
            # def predict(self, instances, **kwargs):
            #     """Performs custom prediction.
            #
            #     Instances are the decoded values from the request. They have already
            #     been deserialized from JSON.
            #
            #     Args:
            #         instances: A list of prediction input instances.
            #         **kwargs: A dictionary of keyword args provided as additional
            #             fields on the predict request body.
            #
            #     Returns:
            #         A list of outputs containing the prediction results. This list must
            #         be JSON serializable.
            #     """
            #     raise NotImplementedError()
            #
            # @classmethod
            # def from_path(cls, model_dir):
            #     """Creates an instance of Predictor using the given path.
            #
            #     Loading of the predictor should be done in this method.
            #
            #     Args:
            #         model_dir: The local directory that contains the exported model
            #             file along with any additional files uploaded when creating the
            #             version resource.
            #
            #     Returns:
            #         An instance implementing this Predictor class.
            #     """
            #     raise NotImplementedError()
            # ```
            #
            # Learn more about [the Predictor interface and custom prediction
            # routines](/ml-engine/docs/tensorflow/custom-prediction-routines).
        "autoScaling": { # Options for automatically scaling a model. # Automatically scale the number of nodes used to serve the model in
            # response to increases and decreases in traffic. Care should be
            # taken to ramp up traffic according to the model's ability to scale
            # or you will start seeing increases in latency and 429 response codes.
          "minNodes": 42, # Optional. The minimum number of nodes to allocate for this model. These
              # nodes are always up, starting from the time the model is deployed.
              # Therefore, the cost of operating this model will be at least
              # `rate` * `min_nodes` * number of hours since last billing cycle,
              # where `rate` is the cost per node-hour as documented in the
              # [pricing guide](/ml-engine/docs/pricing),
              # even if no predictions are performed. There is additional cost for each
              # prediction performed.
              #
              # Unlike manual scaling, if the load gets too heavy for the nodes
              # that are up, the service will automatically add nodes to handle the
              # increased load as well as scale back as traffic drops, always maintaining
              # at least `min_nodes`. You will be charged for the time in which additional
              # nodes are used.
              #
              # If not specified, `min_nodes` defaults to 0, in which case, when traffic
              # to a model stops (and after a cool-down period), nodes will be shut down
              # and no charges will be incurred until traffic to the model resumes.
              #
              # You can set `min_nodes` when creating the model version, and you can also
              # update `min_nodes` for an existing version:
              # <pre>
              # update_body.json:
              # {
              #   'autoScaling': {
              #     'minNodes': 5
              #   }
              # }
              # </pre>
              # HTTP request:
              # <pre>
              # PATCH
              # https://ml.googleapis.com/v1/{name=projects/*/models/*/versions/*}?update_mask=autoScaling.minNodes
              # -d @./update_body.json
              # </pre>
        },
        "serviceAccount": "A String", # Optional. Specifies the service account for resource access control.
        "state": "A String", # Output only. The state of a version.
        "pythonVersion": "A String", # Optional. The version of Python used in prediction. If not set, the default
            # version is '2.7'. Python '3.5' is available when `runtime_version` is set
            # to '1.4' and above. Python '2.7' works with all supported runtime versions.
        "framework": "A String", # Optional. The machine learning framework AI Platform uses to train
            # this version of the model. Valid values are `TENSORFLOW`, `SCIKIT_LEARN`,
            # `XGBOOST`. If you do not specify a framework, AI Platform
            # will analyze files in the deployment_uri to determine a framework. If you
            # choose `SCIKIT_LEARN` or `XGBOOST`, you must also set the runtime version
            # of the model to 1.4 or greater.
            #
            # Do **not** specify a framework if you're deploying a [custom
            # prediction routine](/ml-engine/docs/tensorflow/custom-prediction-routines).
        "packageUris": [ # Optional. Cloud Storage paths (`gs://…`) of packages for [custom
            # prediction routines](/ml-engine/docs/tensorflow/custom-prediction-routines)
            # or [scikit-learn pipelines with custom
            # code](/ml-engine/docs/scikit/exporting-for-prediction#custom-pipeline-code).
            #
            # For a custom prediction routine, one of these packages must contain your
            # Predictor class (see
            # [`predictionClass`](#Version.FIELDS.prediction_class)). Additionally,
            # include any dependencies used by your Predictor or scikit-learn pipeline
            # uses that are not already included in your selected [runtime
            # version](/ml-engine/docs/tensorflow/runtime-version-list).
            #
            # If you specify this field, you must also set
            # [`runtimeVersion`](#Version.FIELDS.runtime_version) to 1.4 or greater.
          "A String",
        ],
        "etag": "A String", # `etag` is used for optimistic concurrency control as a way to help
            # prevent simultaneous updates of a model from overwriting each other.
            # It is strongly suggested that systems make use of the `etag` in the
            # read-modify-write cycle to perform model updates in order to avoid race
            # conditions: An `etag` is returned in the response to `GetVersion`, and
            # systems are expected to put that etag in the request to `UpdateVersion` to
            # ensure that their change will be applied to the model as intended.
        "lastUseTime": "A String", # Output only. The time the version was last used for prediction.
        "deploymentUri": "A String", # Required. The Cloud Storage location of the trained model used to
            # create the version. See the
            # [guide to model
            # deployment](/ml-engine/docs/tensorflow/deploying-models) for more
            # information.
            #
            # When passing Version to
            # [projects.models.versions.create](/ml-engine/reference/rest/v1/projects.models.versions/create)
            # the model service uses the specified location as the source of the model.
            # Once deployed, the model version is hosted by the prediction service, so
            # this location is useful only as a historical record.
            # The total number of model files can't exceed 1000.
        "createTime": "A String", # Output only. The time the version was created.
        "isDefault": True or False, # Output only. If true, this version will be used to handle prediction
            # requests that do not specify a version.
            #
            # You can change the default version by calling
            # [projects.methods.versions.setDefault](/ml-engine/reference/rest/v1/projects.models.versions/setDefault).
        "name": "A String", # Required.The name specified for the version when it was created.
            #
            # The version name must be unique within the model it is created in.
      },
    ],
  }</pre>
</div>

<div class="method">
    <code class="details" id="list_next">list_next(previous_request, previous_response)</code>
  <pre>Retrieves the next page of results.

Args:
  previous_request: The request for the previous page. (required)
  previous_response: The response from the request for the previous page. (required)

Returns:
  A request object that you can call 'execute()' on to request the next
  page. Returns None if there are no more items in the collection.
    </pre>
</div>

<div class="method">
    <code class="details" id="patch">patch(name, body, updateMask=None, x__xgafv=None)</code>
  <pre>Updates the specified Version resource.

Currently the only update-able fields are `description` and
`autoScaling.minNodes`.

Args:
  name: string, Required. The name of the model. (required)
  body: object, The request body. (required)
    The object takes the form of:

{ # Represents a version of the model.
    # 
    # Each version is a trained model deployed in the cloud, ready to handle
    # prediction requests. A model can have multiple versions. You can get
    # information about all of the versions of a given model by calling
    # [projects.models.versions.list](/ml-engine/reference/rest/v1/projects.models.versions/list).
  "errorMessage": "A String", # Output only. The details of a failure or a cancellation.
  "labels": { # Optional. One or more labels that you can add, to organize your model
      # versions. Each label is a key-value pair, where both the key and the value
      # are arbitrary strings that you supply.
      # For more information, see the documentation on
      # <a href="/ml-engine/docs/tensorflow/resource-labels">using labels</a>.
    "a_key": "A String",
  },
  "machineType": "A String", # Optional. The type of machine on which to serve the model. Currently only
      # applies to online prediction service.
      # <dl>
      #   <dt>mls1-c1-m2</dt>
      #   <dd>
      #   The <b>default</b> machine type, with 1 core and 2 GB RAM. The deprecated
      #   name for this machine type is "mls1-highmem-1".
      #   </dd>
      #   <dt>mls1-c4-m2</dt>
      #   <dd>
      #   In <b>Beta</b>. This machine type has 4 cores and 2 GB RAM. The
      #   deprecated name for this machine type is "mls1-highcpu-4".
      #   </dd>
      # </dl>
  "description": "A String", # Optional. The description specified for the version when it was created.
  "runtimeVersion": "A String", # Optional. The AI Platform runtime version to use for this deployment.
      # If not set, AI Platform uses the default stable version, 1.0. For more
      # information, see the
      # [runtime version list](/ml-engine/docs/runtime-version-list) and
      # [how to manage runtime versions](/ml-engine/docs/versioning).
  "manualScaling": { # Options for manually scaling a model. # Manually select the number of nodes to use for serving the
      # model. You should generally use `auto_scaling` with an appropriate
      # `min_nodes` instead, but this option is available if you want more
      # predictable billing. Beware that latency and error rates will increase
      # if the traffic exceeds that capability of the system to serve it based
      # on the selected number of nodes.
    "nodes": 42, # The number of nodes to allocate for this model. These nodes are always up,
        # starting from the time the model is deployed, so the cost of operating
        # this model will be proportional to `nodes` * number of hours since
        # last billing cycle plus the cost for each prediction performed.
  },
  "predictionClass": "A String", # Optional. The fully qualified name
      # (<var>module_name</var>.<var>class_name</var>) of a class that implements
      # the Predictor interface described in this reference field. The module
      # containing this class should be included in a package provided to the
      # [`packageUris` field](#Version.FIELDS.package_uris).
      # 
      # Specify this field if and only if you are deploying a [custom prediction
      # routine (beta)](/ml-engine/docs/tensorflow/custom-prediction-routines).
      # If you specify this field, you must set
      # [`runtimeVersion`](#Version.FIELDS.runtime_version) to 1.4 or greater.
      # 
      # The following code sample provides the Predictor interface:
      # 
      # ```py
      # class Predictor(object):
      # """Interface for constructing custom predictors."""
      # 
      # def predict(self, instances, **kwargs):
      #     """Performs custom prediction.
      # 
      #     Instances are the decoded values from the request. They have already
      #     been deserialized from JSON.
      # 
      #     Args:
      #         instances: A list of prediction input instances.
      #         **kwargs: A dictionary of keyword args provided as additional
      #             fields on the predict request body.
      # 
      #     Returns:
      #         A list of outputs containing the prediction results. This list must
      #         be JSON serializable.
      #     """
      #     raise NotImplementedError()
      # 
      # @classmethod
      # def from_path(cls, model_dir):
      #     """Creates an instance of Predictor using the given path.
      # 
      #     Loading of the predictor should be done in this method.
      # 
      #     Args:
      #         model_dir: The local directory that contains the exported model
      #             file along with any additional files uploaded when creating the
      #             version resource.
      # 
      #     Returns:
      #         An instance implementing this Predictor class.
      #     """
      #     raise NotImplementedError()
      # ```
      # 
      # Learn more about [the Predictor interface and custom prediction
      # routines](/ml-engine/docs/tensorflow/custom-prediction-routines).
  "autoScaling": { # Options for automatically scaling a model. # Automatically scale the number of nodes used to serve the model in
      # response to increases and decreases in traffic. Care should be
      # taken to ramp up traffic according to the model's ability to scale
      # or you will start seeing increases in latency and 429 response codes.
    "minNodes": 42, # Optional. The minimum number of nodes to allocate for this model. These
        # nodes are always up, starting from the time the model is deployed.
        # Therefore, the cost of operating this model will be at least
        # `rate` * `min_nodes` * number of hours since last billing cycle,
        # where `rate` is the cost per node-hour as documented in the
        # [pricing guide](/ml-engine/docs/pricing),
        # even if no predictions are performed. There is additional cost for each
        # prediction performed.
        #
        # Unlike manual scaling, if the load gets too heavy for the nodes
        # that are up, the service will automatically add nodes to handle the
        # increased load as well as scale back as traffic drops, always maintaining
        # at least `min_nodes`. You will be charged for the time in which additional
        # nodes are used.
        #
        # If not specified, `min_nodes` defaults to 0, in which case, when traffic
        # to a model stops (and after a cool-down period), nodes will be shut down
        # and no charges will be incurred until traffic to the model resumes.
        #
        # You can set `min_nodes` when creating the model version, and you can also
        # update `min_nodes` for an existing version:
        # <pre>
        # update_body.json:
        # {
        #   'autoScaling': {
        #     'minNodes': 5
        #   }
        # }
        # </pre>
        # HTTP request:
        # <pre>
        # PATCH
        # https://ml.googleapis.com/v1/{name=projects/*/models/*/versions/*}?update_mask=autoScaling.minNodes
        # -d @./update_body.json
        # </pre>
  },
  "serviceAccount": "A String", # Optional. Specifies the service account for resource access control.
  "state": "A String", # Output only. The state of a version.
  "pythonVersion": "A String", # Optional. The version of Python used in prediction. If not set, the default
      # version is '2.7'. Python '3.5' is available when `runtime_version` is set
      # to '1.4' and above. Python '2.7' works with all supported runtime versions.
  "framework": "A String", # Optional. The machine learning framework AI Platform uses to train
      # this version of the model. Valid values are `TENSORFLOW`, `SCIKIT_LEARN`,
      # `XGBOOST`. If you do not specify a framework, AI Platform
      # will analyze files in the deployment_uri to determine a framework. If you
      # choose `SCIKIT_LEARN` or `XGBOOST`, you must also set the runtime version
      # of the model to 1.4 or greater.
      # 
      # Do **not** specify a framework if you're deploying a [custom
      # prediction routine](/ml-engine/docs/tensorflow/custom-prediction-routines).
  "packageUris": [ # Optional. Cloud Storage paths (`gs://…`) of packages for [custom
      # prediction routines](/ml-engine/docs/tensorflow/custom-prediction-routines)
      # or [scikit-learn pipelines with custom
      # code](/ml-engine/docs/scikit/exporting-for-prediction#custom-pipeline-code).
      # 
      # For a custom prediction routine, one of these packages must contain your
      # Predictor class (see
      # [`predictionClass`](#Version.FIELDS.prediction_class)). Additionally,
      # include any dependencies used by your Predictor or scikit-learn pipeline
      # uses that are not already included in your selected [runtime
      # version](/ml-engine/docs/tensorflow/runtime-version-list).
      # 
      # If you specify this field, you must also set
      # [`runtimeVersion`](#Version.FIELDS.runtime_version) to 1.4 or greater.
    "A String",
  ],
  "etag": "A String", # `etag` is used for optimistic concurrency control as a way to help
      # prevent simultaneous updates of a model from overwriting each other.
      # It is strongly suggested that systems make use of the `etag` in the
      # read-modify-write cycle to perform model updates in order to avoid race
      # conditions: An `etag` is returned in the response to `GetVersion`, and
      # systems are expected to put that etag in the request to `UpdateVersion` to
      # ensure that their change will be applied to the model as intended.
  "lastUseTime": "A String", # Output only. The time the version was last used for prediction.
  "deploymentUri": "A String", # Required. The Cloud Storage location of the trained model used to
      # create the version. See the
      # [guide to model
      # deployment](/ml-engine/docs/tensorflow/deploying-models) for more
      # information.
      # 
      # When passing Version to
      # [projects.models.versions.create](/ml-engine/reference/rest/v1/projects.models.versions/create)
      # the model service uses the specified location as the source of the model.
      # Once deployed, the model version is hosted by the prediction service, so
      # this location is useful only as a historical record.
      # The total number of model files can't exceed 1000.
  "createTime": "A String", # Output only. The time the version was created.
  "isDefault": True or False, # Output only. If true, this version will be used to handle prediction
      # requests that do not specify a version.
      # 
      # You can change the default version by calling
      # [projects.methods.versions.setDefault](/ml-engine/reference/rest/v1/projects.models.versions/setDefault).
  "name": "A String", # Required.The name specified for the version when it was created.
      # 
      # The version name must be unique within the model it is created in.
}

  updateMask: string, Required. Specifies the path, relative to `Version`, of the field to
update. Must be present and non-empty.

For example, to change the description of a version to "foo", the
`update_mask` parameter would be specified as `description`, and the
`PATCH` request body would specify the new value, as follows:
    {
      "description": "foo"
    }

Currently the only supported update mask fields are `description` and
`autoScaling.minNodes`.
  x__xgafv: string, V1 error format.
    Allowed values
      1 - v1 error format
      2 - v2 error format

Returns:
  An object of the form:

    { # This resource represents a long-running operation that is the result of a
      # network API call.
    "metadata": { # Service-specific metadata associated with the operation.  It typically
        # contains progress information and common metadata such as create time.
        # Some services might not provide such metadata.  Any method that returns a
        # long-running operation should document the metadata type, if any.
      "a_key": "", # Properties of the object. Contains field @type with type URL.
    },
    "error": { # The `Status` type defines a logical error model that is suitable for # The error result of the operation in case of failure or cancellation.
        # different programming environments, including REST APIs and RPC APIs. It is
        # used by [gRPC](https://github.com/grpc). Each `Status` message contains
        # three pieces of data: error code, error message, and error details.
        #
        # You can find out more about this error model and how to work with it in the
        # [API Design Guide](https://cloud.google.com/apis/design/errors).
      "message": "A String", # A developer-facing error message, which should be in English. Any
          # user-facing error message should be localized and sent in the
          # google.rpc.Status.details field, or localized by the client.
      "code": 42, # The status code, which should be an enum value of google.rpc.Code.
      "details": [ # A list of messages that carry the error details.  There is a common set of
          # message types for APIs to use.
        {
          "a_key": "", # Properties of the object. Contains field @type with type URL.
        },
      ],
    },
    "done": True or False, # If the value is `false`, it means the operation is still in progress.
        # If `true`, the operation is completed, and either `error` or `response` is
        # available.
    "response": { # The normal response of the operation in case of success.  If the original
        # method returns no data on success, such as `Delete`, the response is
        # `google.protobuf.Empty`.  If the original method is standard
        # `Get`/`Create`/`Update`, the response should be the resource.  For other
        # methods, the response should have the type `XxxResponse`, where `Xxx`
        # is the original method name.  For example, if the original method name
        # is `TakeSnapshot()`, the inferred response type is
        # `TakeSnapshotResponse`.
      "a_key": "", # Properties of the object. Contains field @type with type URL.
    },
    "name": "A String", # The server-assigned name, which is only unique within the same service that
        # originally returns it. If you use the default HTTP mapping, the
        # `name` should be a resource name ending with `operations/{unique_id}`.
  }</pre>
</div>

<div class="method">
    <code class="details" id="setDefault">setDefault(name, body=None, x__xgafv=None)</code>
  <pre>Designates a version to be the default for the model.

The default version is used for prediction requests made against the model
that don't specify a version.

The first version to be created for a model is automatically set as the
default. You must make any subsequent changes to the default version
setting manually using this method.

Args:
  name: string, Required. The name of the version to make the default for the model. You
can get the names of all the versions of a model by calling
[projects.models.versions.list](/ml-engine/reference/rest/v1/projects.models.versions/list). (required)
  body: object, The request body.
    The object takes the form of:

{ # Request message for the SetDefaultVersion request.
  }

  x__xgafv: string, V1 error format.
    Allowed values
      1 - v1 error format
      2 - v2 error format

Returns:
  An object of the form:

    { # Represents a version of the model.
      #
      # Each version is a trained model deployed in the cloud, ready to handle
      # prediction requests. A model can have multiple versions. You can get
      # information about all of the versions of a given model by calling
      # [projects.models.versions.list](/ml-engine/reference/rest/v1/projects.models.versions/list).
    "errorMessage": "A String", # Output only. The details of a failure or a cancellation.
    "labels": { # Optional. One or more labels that you can add, to organize your model
        # versions. Each label is a key-value pair, where both the key and the value
        # are arbitrary strings that you supply.
        # For more information, see the documentation on
        # <a href="/ml-engine/docs/tensorflow/resource-labels">using labels</a>.
      "a_key": "A String",
    },
    "machineType": "A String", # Optional. The type of machine on which to serve the model. Currently only
        # applies to online prediction service.
        # <dl>
        #   <dt>mls1-c1-m2</dt>
        #   <dd>
        #   The <b>default</b> machine type, with 1 core and 2 GB RAM. The deprecated
        #   name for this machine type is "mls1-highmem-1".
        #   </dd>
        #   <dt>mls1-c4-m2</dt>
        #   <dd>
        #   In <b>Beta</b>. This machine type has 4 cores and 2 GB RAM. The
        #   deprecated name for this machine type is "mls1-highcpu-4".
        #   </dd>
        # </dl>
    "description": "A String", # Optional. The description specified for the version when it was created.
    "runtimeVersion": "A String", # Optional. The AI Platform runtime version to use for this deployment.
        # If not set, AI Platform uses the default stable version, 1.0. For more
        # information, see the
        # [runtime version list](/ml-engine/docs/runtime-version-list) and
        # [how to manage runtime versions](/ml-engine/docs/versioning).
    "manualScaling": { # Options for manually scaling a model. # Manually select the number of nodes to use for serving the
        # model. You should generally use `auto_scaling` with an appropriate
        # `min_nodes` instead, but this option is available if you want more
        # predictable billing. Beware that latency and error rates will increase
        # if the traffic exceeds that capability of the system to serve it based
        # on the selected number of nodes.
      "nodes": 42, # The number of nodes to allocate for this model. These nodes are always up,
          # starting from the time the model is deployed, so the cost of operating
          # this model will be proportional to `nodes` * number of hours since
          # last billing cycle plus the cost for each prediction performed.
    },
    "predictionClass": "A String", # Optional. The fully qualified name
        # (<var>module_name</var>.<var>class_name</var>) of a class that implements
        # the Predictor interface described in this reference field. The module
        # containing this class should be included in a package provided to the
        # [`packageUris` field](#Version.FIELDS.package_uris).
        #
        # Specify this field if and only if you are deploying a [custom prediction
        # routine (beta)](/ml-engine/docs/tensorflow/custom-prediction-routines).
        # If you specify this field, you must set
        # [`runtimeVersion`](#Version.FIELDS.runtime_version) to 1.4 or greater.
        #
        # The following code sample provides the Predictor interface:
        #
        # ```py
        # class Predictor(object):
        # """Interface for constructing custom predictors."""
        #
        # def predict(self, instances, **kwargs):
        #     """Performs custom prediction.
        #
        #     Instances are the decoded values from the request. They have already
        #     been deserialized from JSON.
        #
        #     Args:
        #         instances: A list of prediction input instances.
        #         **kwargs: A dictionary of keyword args provided as additional
        #             fields on the predict request body.
        #
        #     Returns:
        #         A list of outputs containing the prediction results. This list must
        #         be JSON serializable.
        #     """
        #     raise NotImplementedError()
        #
        # @classmethod
        # def from_path(cls, model_dir):
        #     """Creates an instance of Predictor using the given path.
        #
        #     Loading of the predictor should be done in this method.
        #
        #     Args:
        #         model_dir: The local directory that contains the exported model
        #             file along with any additional files uploaded when creating the
        #             version resource.
        #
        #     Returns:
        #         An instance implementing this Predictor class.
        #     """
        #     raise NotImplementedError()
        # ```
        #
        # Learn more about [the Predictor interface and custom prediction
        # routines](/ml-engine/docs/tensorflow/custom-prediction-routines).
    "autoScaling": { # Options for automatically scaling a model. # Automatically scale the number of nodes used to serve the model in
        # response to increases and decreases in traffic. Care should be
        # taken to ramp up traffic according to the model's ability to scale
        # or you will start seeing increases in latency and 429 response codes.
      "minNodes": 42, # Optional. The minimum number of nodes to allocate for this model. These
          # nodes are always up, starting from the time the model is deployed.
          # Therefore, the cost of operating this model will be at least
          # `rate` * `min_nodes` * number of hours since last billing cycle,
          # where `rate` is the cost per node-hour as documented in the
          # [pricing guide](/ml-engine/docs/pricing),
          # even if no predictions are performed. There is additional cost for each
          # prediction performed.
          #
          # Unlike manual scaling, if the load gets too heavy for the nodes
          # that are up, the service will automatically add nodes to handle the
          # increased load as well as scale back as traffic drops, always maintaining
          # at least `min_nodes`. You will be charged for the time in which additional
          # nodes are used.
          #
          # If not specified, `min_nodes` defaults to 0, in which case, when traffic
          # to a model stops (and after a cool-down period), nodes will be shut down
          # and no charges will be incurred until traffic to the model resumes.
          #
          # You can set `min_nodes` when creating the model version, and you can also
          # update `min_nodes` for an existing version:
          # <pre>
          # update_body.json:
          # {
          #   'autoScaling': {
          #     'minNodes': 5
          #   }
          # }
          # </pre>
          # HTTP request:
          # <pre>
          # PATCH
          # https://ml.googleapis.com/v1/{name=projects/*/models/*/versions/*}?update_mask=autoScaling.minNodes
          # -d @./update_body.json
          # </pre>
    },
    "serviceAccount": "A String", # Optional. Specifies the service account for resource access control.
    "state": "A String", # Output only. The state of a version.
    "pythonVersion": "A String", # Optional. The version of Python used in prediction. If not set, the default
        # version is '2.7'. Python '3.5' is available when `runtime_version` is set
        # to '1.4' and above. Python '2.7' works with all supported runtime versions.
    "framework": "A String", # Optional. The machine learning framework AI Platform uses to train
        # this version of the model. Valid values are `TENSORFLOW`, `SCIKIT_LEARN`,
        # `XGBOOST`. If you do not specify a framework, AI Platform
        # will analyze files in the deployment_uri to determine a framework. If you
        # choose `SCIKIT_LEARN` or `XGBOOST`, you must also set the runtime version
        # of the model to 1.4 or greater.
        #
        # Do **not** specify a framework if you're deploying a [custom
        # prediction routine](/ml-engine/docs/tensorflow/custom-prediction-routines).
    "packageUris": [ # Optional. Cloud Storage paths (`gs://…`) of packages for [custom
        # prediction routines](/ml-engine/docs/tensorflow/custom-prediction-routines)
        # or [scikit-learn pipelines with custom
        # code](/ml-engine/docs/scikit/exporting-for-prediction#custom-pipeline-code).
        #
        # For a custom prediction routine, one of these packages must contain your
        # Predictor class (see
        # [`predictionClass`](#Version.FIELDS.prediction_class)). Additionally,
        # include any dependencies used by your Predictor or scikit-learn pipeline
        # uses that are not already included in your selected [runtime
        # version](/ml-engine/docs/tensorflow/runtime-version-list).
        #
        # If you specify this field, you must also set
        # [`runtimeVersion`](#Version.FIELDS.runtime_version) to 1.4 or greater.
      "A String",
    ],
    "etag": "A String", # `etag` is used for optimistic concurrency control as a way to help
        # prevent simultaneous updates of a model from overwriting each other.
        # It is strongly suggested that systems make use of the `etag` in the
        # read-modify-write cycle to perform model updates in order to avoid race
        # conditions: An `etag` is returned in the response to `GetVersion`, and
        # systems are expected to put that etag in the request to `UpdateVersion` to
        # ensure that their change will be applied to the model as intended.
    "lastUseTime": "A String", # Output only. The time the version was last used for prediction.
    "deploymentUri": "A String", # Required. The Cloud Storage location of the trained model used to
        # create the version. See the
        # [guide to model
        # deployment](/ml-engine/docs/tensorflow/deploying-models) for more
        # information.
        #
        # When passing Version to
        # [projects.models.versions.create](/ml-engine/reference/rest/v1/projects.models.versions/create)
        # the model service uses the specified location as the source of the model.
        # Once deployed, the model version is hosted by the prediction service, so
        # this location is useful only as a historical record.
        # The total number of model files can't exceed 1000.
    "createTime": "A String", # Output only. The time the version was created.
    "isDefault": True or False, # Output only. If true, this version will be used to handle prediction
        # requests that do not specify a version.
        #
        # You can change the default version by calling
        # [projects.methods.versions.setDefault](/ml-engine/reference/rest/v1/projects.models.versions/setDefault).
    "name": "A String", # Required.The name specified for the version when it was created.
        #
        # The version name must be unique within the model it is created in.
  }</pre>
</div>

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